Toshiba V Series User Manual page 122

Appendix A Table of Specifications
A
106
Table A-6 S20LP Specifications
Item
Topology Optical double loop
Transmission code Differential Manchester Code
Modulation Baseband
Transmission rate 2 Mbps
Connector F07 connector (JIS)
Number of Max. 64 stations
connectable
stations
Transmission line Between stations; Max. 1 km
length Overall system length: 30 km
Transmission cable H-PCF (200/230 µm)
Transmission • Number of scan transmission words: 4 kW
protocol
• Message transmission: 128 words/frame
Connectable T3H (SN325), T2N (PU245N), PCS (PTLS9), FIS
devices (TS25)
Table A-7 IO Bus Specifications
Item
Topology Multi-drop
Transmission IEEE 802.4 compliant
Interface RS-485 (IO BUS)
Transmission 19.2 Kbps/375 Kbps
rate (Transmission data size is fixed, 22 bytes, at the 375 Kbps
rate.)
Number of Max.16 nodes
connectable
nodes
Transmission 19.2 Kbps: Max. 1 km/ 375 Kbps: Max. 100m
line length
Transmission Shielded twisted pair cable
cable
Number of I/O Max. 16 units/bus
units
Insulation Insulated from power units, logic circuits and other ports
Specifications
Specifications
model 1000 Loop Controller L1 User's Manual - Basic Hardware
Remarks
Bus
connection if
one station
fails
Target
response
cycle: 75ms
PC/AT bus for
man-machine
interface
(ASN15)
Remarks
1 channel
Selectable by
software
Mixed use of
rates not
allowable